Car-truck.



W. HOBSON.

GAR TRUCK.

APPLICATION FILED Ammz, 1911.

Patented Apr. 9, 1912.

Wm B05305.

or 0%Wm P m UNiTE STATES PATENT onrron WALTERHOBS ON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MES NE ASSTGNE MENTS, TO THE BALDWIN LOCOMOTIVE WORKS, F PHILA DELPHIA, PENNSYL- VANIA, A CORPORATION 01E PENNSYLVANIA. I

CAR-TRUCK.

Specification of Letters Patent. I Application filed April 22, 1911. Serial No. 622,681.

which the ollowingis a specification.

' This invention relates to certaininiprovements in the construction of car trucks,

pecially those used under trolley and inter-' urban cars. i v

One ob ect of the invention is to make a .-c omparat1 vely light truck, which will have the'stren th desired.

A further object of the, invention is to construct the truck'in such a manner that the pedestals can beinade of plates and to 1 provide detachable'gibsffor the boxes, which.

i 'can be readily-removedwhen-desired;

- 1, is a side view, illustrating my improvedj, I

jtendovfer the boxes'D. Carriedby the .ends

A still further object of'the invention is to-provide an an le brace, which is attached to the inner vpe estals' and which extends under the main frameofthe truck.

In the accompanying drawings :Figure truck with the boxes in section; Fig. 2, isa:

lan view of one-half-of the truck; Fig. 3, 1s a sectional plan view on the line 33,- fiFig. 1; Fig. 4, is a detached perspective View, showin two of the inner pedestal plates; and 1g. 5, is a perspective View of one of the gibs'. v

A is one ofthe side frames connected to i the opposite frame by transom members B;

estal plates E-E and F-F. I

are wide at the point where they .are secured havin U-shaped connections B at each end.

The sldeefrarnes are connected to the transoms by plates C, made in a single piece in the present.instance, and extended laterally --.O as to make a firm connectionbetween the transoms and the side frames of the truck.- The. side frames consist of a solid bar A extending over the boxes D and secured to each side of this bar are the de ending ped-- he plates, E

to the bar A and are preferably tapered at the lower end, as clearly shown in Fig. 4.

G is an angle brace, which passes. under the U-shaped portion B of the frame. The ends of this brace extend between the plates E-E and are rigidly secured thereto by bolts g and to the U-shaped frame B by bolts 9', making a Very rigid construction, yet allowing considerable clearance between thetwo-inner pedestals. As each pen of plates E and F isspaeed apart, due to being bolted on each side of the solid top bar'A,

I mount detachable gibsl between each pair of pedestal plates, as clearly'shown in Figs. 1 and'3, and secure them in place by transverse bolts i. These gibs are preferably extended beyond the width of the side mem-- bers of the truck so as to' fit within the.

grooves (Z in the boxes D, thusholding' the PatentedAp1p9. 1912.

boxes in the proper position. These gibs,---'

in the present instance, are 'of the shape clearly; illustrated in Fig. 5, Mounted' 1n" .1 v

the boxes 'D are the axles-H, on which are c flanged;\vheelsth-Q- YVhen it is desired to renew these 'gibsl -all that "is necessaryis to wremo ve 'the bolts ijand to drop the connectv ingi bar-''ywhi'ch' couples the pedestals E and IF, after whichflthe ibs can be readily detached'andothers'su stituted. Theoutigedestals are made triangular 'a've'open centers f. .Mounted m-jthesej open centers-are the springs n, which are located between the side frames in shape'and andythe Ieqhaili'zing beams N-N, which exo fsthese, equalizing beams are spring seats a" and secured. to the under side of the bar A- are spring Seats 121 The equalizing beam N .on the outside of the frame extends straight across from one box to the other, but the rear beam N" is curved and extends under the transoms, as clearly illustrated in Fig; 1. v

n The triangular pedestals F carry, at their outer ends; the motor supporting frame M.

.The ends o f'the supporting frame M are perforated and extending through the per- -forations are rods m, which are coupled atf to the ou'ter ends of'the triangular. ped- .estals F. Mounted between the pedestals and the lower side of the supportin frame M is a heavy spring m and mounted. tween the nut on the outer end of the rod m and the'frame M isa light spring m v P arethe motors, which are mounted. on the axles and the outer-ends-of these motors are supportedby the frame M.-

It willbe seen by the above construction that I am enabled to make a very light and substantial truck, especiall' adapted; for

trolley and inter-urban Wor and 1n which the gibs or chafing blocks can be readily j.

renewed when desired. The side frames are comparatively light and are quickly and I 9 frames and connecting transomsj axleeach side frame consisting of a solid, lpngi;

economically manufactured. By connecting the braces to the inner pedestals in the manner shown, a comparatively short brace is used, whichwill be suflicient-ly above the 5 road bed to give clearance.

I claim:

- 1. The combination in acar truck, oisidee ixmmebein made' 0 a solid longitudinal top bar; depending plates mounted on'each- "side of-each side bar'and forming thepedestals of the trlick;

portions tothe lates. 3. T e-combination in a car truck, of side boxes,

boxes mounted in the .j .pedestals; gibs securedbetween the plates" -25 ofeach set and having projecting entering the grooves in the b6:es;-w1th bolts which the gibsfare-detachablyconnected tudinal bar extex'iding above the boxes; plates secured to each s ide of the bar and forming the pedestals; the inner pedestals-- being wider at the upper end; with angle braces extending under the'transoms at the a center of the frame and extending betwce' i the plates forming-the pedestals and secured thereto at a point below the longitudinal side frames; tran'somsconnecting the 4. The. combinationlin a car truck, of two frames; each frame ha"v ing .a Jlongitudinai upper bar; with depending plates secured to each side. of the bar and forming the sped estals'; axleboxesmount'd'bet-Ween the-pedestals; gibs located between thdplates and seclired :thereto and f iing the game for the axleiboxes; each outer pedestal? 1at. A

56" ar'and'gwith-iir e'dp'en centers having an ogencent er; sprii smeun" un der the top v of the side platospwith' equalizing bars ex tending .QVGI the. boxes and supporting the In 'testimonf -ivhereot, 'I hate signed my two subscribing witnesses.

as name to this specification; in thepre'sencejof; 

